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After a careful consideration of the experimental and clinical facts comes a recapitulation of the methods for recognizing hypersensibility in a given cutaneous disease. Next comes a discussion of such dermatoses as urticaria, artificial dermatoses, eczema, pruritus, the prurigos and strophulus plus recurrent herpes and herpetiform dermatitis. The last chapter is devoted to a review of the therapeutic methods employed in such cases. The authors agree with the American and German writers who do not attempt to discriminate between anaphylaxis and idiosyncrasy. What they term allergic disorders the authors have named "maladies by hypersensibility." They do not consider eosinophilia as a stigma of anaphylaxis or as a sign of colloidoclasic diathesis. In a majority of their cases of eczema they have been unable to show a sensibility to a protein. It is erroneous, they believe, to consider a simple local erythema as a positive cutireaction. Of the therapeutic measures, the